Adamant

On an alternative Earth in which our world is one of many in the Multiverse, the Inter-World Alliance exists to keep the peace between the worlds, and keep the monsters out. The Alliance series follows Ada, who lives under the Alliance's radar, risking her life to illegally help refugees from her war-torn homeworld hide on low-magic Earth; and Kay, an Alliance guard newly graduated from the tough-as-nails Academy and determined to solve his boss's murder. And when Ada is arrested as a suspect for the killing, things only get more complicated...